The relationship between the Global Minimum Tax (Pillar Two) and Transfer Pricing Documentation has become an increasingly important aspect of international tax governance. The issuance of Indonesia’s Minister of Finance Regulation (PMK) Number 136 of 2024 on the Global Minimum Tax and PMK No. 172 of 2023 on the Application of the Arm’s Length Principle demonstrates that tax compliance is no longer focused solely on adherence to the arm’s length principle, but also on data consistency, economic substance, and the integration of financial information in calculating the Effective Tax Rate (ETR) under the Global Anti-Base Erosion (GloBE) Rules. In this context, Transfer Pricing Documentation serves as a strategic instrument for supporting tax risk management, evaluating the utilization of tax incentives, structuring cross-border investments, and aligning information with the Country-by-Country Report (CbCR), the GloBE Information Return (GIR), and other international tax requirements. By understanding the relationship between these two tax regimes, multinational enterprises can develop tax strategies that are more transparent, sustainable, and aligned with sound tax governance, thereby enhancing legal certainty amid the evolving global tax architecture.
In the previous two articles, Pillar Two was examined from two perspectives: first, as a new chapter in global tax fairness; and second, as a practical roadmap to the implementation of Indonesia’s Ministry of Finance Regulation (PMK) No. 136 of 2024. This third article addresses a practical question that is increasingly being raised in boardrooms and investment committees: what is the relationship between the Global Minimum Tax and Transfer Pricing Documentation? The answer is straightforward yet significant: Pillar Two does not replace Transfer Pricing, but it elevates the quality and importance of Transfer Pricing Documentation (TP Documentation) far beyond a mere compliance exercise.
From an international perspective, this analysis refers to Indonesia’s regulatory framework governing both the Global Minimum Tax and TP Documentation, particularly PMK No. 136 of 2024 concerning the implementation of the Global Minimum Tax based on international agreements, and PMK No. 172 of 2023 concerning the application of the Arm’s Length Principle in Related-Party Transactions. At the global level, the relevant references include the OECD/G20 Inclusive Framework, the Global Anti-Base Erosion (GloBE) Model Rules under Pillar Two, related Commentary and Administrative Guidance, the GloBE Information Return, Safe Harbour provisions, and the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations 2022.
For investors, this should not be viewed as unfavorable news. On the contrary, the interaction between Pillar Two and Transfer Pricing has the potential to create greater certainty when managed proactively from the outset. Governments retain the legitimate right to protect their tax bases, while investors are equally entitled to predictable regulations, consistent documentation, and a transparent risk landscape. This is where a new balance must be established: strong compliance without undermining investment competitiveness.
From a regulatory standpoint, these two pillars must be read together. PMK No. 136 of 2024 governs the implementation of the Global Minimum Tax, including the Income Inclusion Rule (IIR), Domestic Minimum Top-up Tax (DMTT), Undertaxed Profits Rule (UTPR), Effective Tax Rate (ETR) calculations, GloBE Income, Safe Harbour provisions, and reporting obligations. The regulation became effective on 1 January 2025, while the UTPR provisions will take effect from 1 January 2026. Meanwhile, PMK No. 172 of 2023 serves as the primary framework for applying the Arm’s Length Principle to related-party transactions, including TP Documentation, Advance Pricing Agreements (APAs), and Mutual Agreement Procedures (MAPs).
Transfer Pricing rules govern how multinational enterprise groups allocate income and expenses across the jurisdictions in which they operate. Pillar Two then assesses whether profits generated within a jurisdiction have been subject to a minimum Effective Tax Rate of 15 percent. In practical terms, Transfer Pricing policies that determine distributor margins, contract manufacturer remuneration, royalties, service fees, interest charges, or cost allocation arrangements directly affect both accounting and taxable profits in each jurisdiction. The information contained in Local Files and Master Files provides tax authorities with a foundation to verify whether profits reported in a given jurisdiction have been taxed at the minimum effective rate of 15 percent. These figures may also serve as a starting point for assessing GloBE Income, Covered Taxes, ETR calculations, and potential top-up tax liabilities. Where income is allocated to jurisdictions with higher tax rates, covered taxes may increase and potentially improve the jurisdictional ETR. Conversely, shifting income to low-tax jurisdictions may trigger additional tax obligations under the Global Minimum Tax framework.
Historically, Transfer Pricing was primarily viewed as a question of whether intercompany transactions complied with the arm’s length principle. Under the Pillar Two environment, an additional question arises: is the allocation of profits across jurisdictions consistent with economic substance, taxes paid, and the group’s global data? Consequently, TP Documentation can no longer be limited to explaining methodologies and benchmarking analyses. It must also be aligned with financial statements, tax returns, Country-by-Country Reports (CbCR), payroll information, tangible asset data, and other information relevant to the GloBE Information Return.
The first major implication is the need for data consistency. If TP Documentation characterizes an Indonesian entity as a limited-risk distributor with a modest profit margin, while in reality the entity maintains substantial personnel, commercial functions, assets, and market risks in Indonesia, investors may face two layers of exposure: Transfer Pricing adjustments and potential Pillar Two concerns. Conversely, when Transfer Pricing policies are designed from the outset in accordance with actual functions, assets, risks, and economic substance, tax documentation becomes a source of certainty rather than merely a defensive instrument in the event of a dispute.
The second implication concerns timing adjustments. Year-end Transfer Pricing adjustments, primary adjustments, corresponding adjustments, and tax audit corrections may alter profits and taxes across different reporting periods. Within the Pillar Two framework, timing mismatches between financial statements, annual tax returns, TP Documentation, and ETR calculations may create additional technical complexities. Investors must therefore ensure that adjustments are not only valid from a Transfer Pricing perspective but are also properly reflected within the broader GloBE framework.
The third implication relates to tax incentives. Tax holidays, tax allowances, super deductions, and similar incentives remain important tools for attracting investment. However, for large multinational groups within the scope of Pillar Two, the benefits of such incentives must be reassessed, as a reduction in tax liability within one jurisdiction may lower the ETR and potentially give rise to a top-up tax. This does not mean that incentives lose their value entirely. Their effectiveness depends on factors such as the group structure, the location of the Ultimate Parent Entity (UPE), the availability of DMTT mechanisms, Safe Harbour provisions, Substance-Based Income Exclusions, and the overall investment structure adopted.
The fourth implication is the increasing importance of dispute prevention mechanisms. Advance Pricing Agreements (APAs) and Mutual Agreement Procedures (MAPs) become more valuable because they can reduce uncertainty regarding cross-border profit allocations. For foreign investors entering Indonesia, APAs can provide greater certainty over recurring business models. For Indonesian businesses expanding overseas, MAPs offer a pathway to mitigate double taxation risks arising from Transfer Pricing adjustments in multiple jurisdictions.
In practice, opportunities for tax planning continue to exist, but their nature is changing. The traditional era of tax planning often emphasized rate arbitrage. The new era requires tax planning that is defensible: genuine business functions, reasonable remuneration, incentive utilization assessed in conjunction with ETR implications, robust substance documentation, and Pillar Two simulations before investments are implemented. Effective tax planning is not about avoiding taxes; it is about designing structures that are efficient, compliant, and capable of withstanding scrutiny from both tax authorities and shareholders. The transfer pricing professionals at SW Tax Consulting possess extensive experience in delivering precisely this type of strategic and compliant tax planning.
From the government’s perspective, this approach is also investment-friendly. Clear regulations help position Indonesia not as an anti-business jurisdiction, but as a large and increasingly sophisticated market. Governments benefit from a more secure tax base; investors gain greater certainty; and the economy benefits from higher-quality investment projects. It is precisely at this intersection that Pillar Two and Transfer Pricing become instruments of governance rather than merely mechanisms for tax adjustments.
Through its SW Tax Consulting practice, SW Indonesia is well positioned to assist multinational investors in evaluating the impact of Pillar Two on investment structures into Indonesia, aligning TP Documentation with CbCR and GloBE requirements, assessing the effectiveness of tax incentives, and preparing documentation that is audit-ready. At the same time, we support Indonesian businesses investing abroad through the development of Transfer Pricing policies, holding structures, substance analyses, and credible international tax compliance strategies.
Ultimately, the relationship between Pillar Two and TP Documentation teaches a simple but important lesson: the future of international taxation is no longer about preparing documentation at year-end; it is about designing the right business structure from the very beginning. Investors who approach this transformation with clarity and foresight will recognize the opportunity. They are not merely building tax structures, they are building reputation, certainty, and sustainable investment value. Compliance remains essential, particularly in light of the famous observation by John Marshall: “The power to tax involves the power to destroy.” Yet when supported by regulatory certainty, compliance becomes not only a legal obligation but also a strategic and constructive component of long-term business success.
